A science teacher performs an experiment to measure the carbon dioxide uptake of the green algae Chlorella under light conditions. He prepares a suspension of Chlorella and places it in a growth chamber near a lamp. A student disrupts the experiment by turning off the lamp, creating dark conditions. Why is there a negative uptake of carbon dioxide under dark condtions?

A.&nbsp

Carbon dioxide production requires light

B.&nbsp

Chlorella is actively photosynthesizing

C.&nbsp

Cellular respiration is taking place

D.&nbsp

Glucose production in the dark requires less carbon dioxide

19.

During aerobic cellular respiration, in which of the following locations do ATP molecules form?

A.&nbsp

Mitochondrial matrix and outer mitochondrial membrane only

B.&nbsp

Cytosol only

C.&nbsp

Cytosol, Mitochondrial matrix and outer mitochondrial membrane only

D.&nbsp

Mitochondrial matrix and inner mitochondrial membrane only

20.

While investigating yeast respiration, a researcher detects ethanol in the yeast culture. Which molecules does the yeast culture also contain?